NSN 5305-01-277-0439

Part Details | HEXAGON HEAD CAP SCREW

5305-01-277-0439 An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. Excludes BOLT,MACHINE; BOLT,EXTERNALLY RELIEVED BODY; BOLT,INTERNAL WRENCHING; and SCREW,CAP,SOCKET HEAD.

Alternate Parts: B1821BH125C275N, 740600112PC 22, 740-6-00112PC 22, MS90728272, MS90728-272, 5305-01-277-0439, 01-277-0439, 5305012770439, 012770439

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53APR 16, 198801-277-043918257 ( SCREW, CAP, HEXAGON HEAD )
REFERENCE DRAWINGS & PICTURES

HEXAGON

Cross Reference | NSN 5305-01-277-0439
Part Number Cage Code Manufacturer
B1821BH125C275N80204AMERICAN NATIONAL STANDARDSINSTITUTE, INCORPORATED
740-6-00112PC 2275394EMERSON POWER TRANSMISSIONCORPORATION
MS90728-27296906MILITARY STANDARDSPROMULGATED BY MILITARY DEPARTMENTS
Technical Data | NSN 5305-01-277-0439
Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
THREAD LENGTH2.205 INCHES MINIMUM AND 2.750 INCHES MAXIMUM
FASTENER LENGTH2.562 INCHES MINIMUM AND 2.750 INCHES MAXIMUM
HEAD STYLE HEXAGON
THREAD DIRECTION RIGHT-HAND
NOMINAL THREAD DIAMETER1.250 INCHES
THREAD QUANTITY PER INCH7
THREAD CLASS2A
MINIMUM TENSILE STRENGTH150000 POUNDS PER SQUARE INCH
HEAD HEIGHT0.749 INCHES MINIMUM AND 0.813 INCHES MAXIMUM
WIDTH BETWEEN FLATS1.812 INCHES MINIMUM AND 1.875 INCHES MAXIMUM